(S)-2-[(2R,3S,6R,8R,9R)-8-((E)-(S)-4-Benzyloxy-3-methyl-but-1-enyl)-3,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl]-propionaldehyde

(5R,6S,7S)-N-methyl,N-methoxy-9-benzyloxy-4,5-dimethyl-5-(triethylsilyl)oxy-2-nonanecarboxamide

(S)-4-[(2S,3R,6R,8S,9S)-8-((R)-4-Benzyloxy-1-methyl-butyl)-3,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl]-2-methyl-butyraldehyde

(2S,3S,6R,8S,9R)-2-((R)-4-Benzyloxy-1-methyl-butyl)-3,9-dimethyl-8-((S)-3-methyl-pent-4-enyl)-1,7-dioxa-spiro[5.5]undecane